Inheritance of dicrotophos resistance in greenhouse whitefly

Amir D. Omer, Bruce E Tabashnik, Marshall W. Johnson

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We studied inheritance of resistance to dicrotophos in greenhouse whitefly, Trialeurodes vaporariorum Westwood (Homoptera, Aleyrodidae). Compared with females from a field-collected susceptible strains (S), females from a resistant strain (R) of T. vaporariorum derived from heavily treated cotton fields had a 28-fold greater LC50 to dicrotophos in laboratory bioassays. Concentration-mortality lines obtained from female progeny of reciprocal F1 crosses (R XS and S XR) were similar, suggesting that inheritance of dicrotophos resistance was autosomal and not influenced by maternal effects. Responses of F1 female progeny were similar to those of the parental S strain, indicating that the resistance was partially recessive (degree of dominance, D, was -0.61). Mortality observed in female progeny obtained from a backcross (F1♀ XR) corresponded more closely to expectations derived from polygenic models than to expectations from a monogenic model. The estimated number of effective factors (sensu Lande, 1981) contributing equally to resistance was three.

Original languageEnglish (US)
Pages (from-to)177-181
Number of pages5
JournalEntomologia Experimentalis et Applicata
Volume77
Issue number2
DOIs
StatePublished - Nov 1995
Externally publishedYes

Fingerprint

dicrotophos
whitefly
Aleyrodidae
inheritance (genetics)
greenhouses
Trialeurodes vaporariorum
mortality
maternal effect
Homoptera
lethal concentration 50
dominance (genetics)
cotton
bioassay
bioassays
fold

Keywords

  • Aleyrodidae
  • Homoptera
  • inheritance
  • insecticide resistance
  • organophosphate
  • Trialeurodes vaporariorum

ASJC Scopus subject areas

  • Insect Science

Cite this

Inheritance of dicrotophos resistance in greenhouse whitefly. / Omer, Amir D.; Tabashnik, Bruce E; Johnson, Marshall W.

In: Entomologia Experimentalis et Applicata, Vol. 77, No. 2, 11.1995, p. 177-181.

Research output: Contribution to journalArticle

Omer, Amir D. ; Tabashnik, Bruce E ; Johnson, Marshall W. / Inheritance of dicrotophos resistance in greenhouse whitefly. In: Entomologia Experimentalis et Applicata. 1995 ; Vol. 77, No. 2. pp. 177-181.
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